The frequencies of three class intervals 54 58, 59 63, 64 68 of – McqOptions

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1.	The frequencies of three class intervals 54 58, 59 63, 64 68 of a distribution are respectively 4, 8 and 12. The frequency density of the 2nd class is
A.	1
B.	1.2
C.	1.6
D.	2
Answer» E.

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